Systems and methods for an alternating current (AC) input selection for a power transformer are disclosed. In particular, a connector is provided that is pre-wired to utilize internal wiring in the power transformer to provide a desired connection. A first option allows two transformers' input winding to be in series while a second option allows the two transformers' input winding to be in parallel. By moving the wiring into the connector, installation is simplified as the wiring has already been done. The installer need only attach the correct plug based on the desired voltage and couple the plug to the transformer. Further, the manipulation of thick wires is also avoided by the installer, further simplifying the installation process.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A power distribution system, comprising a power management circuit (PMC) comprising: a power source input port configured to receive an alternating current (AC) power signal from an external power grid; a transformer for providing isolation between the external power grid and a power distribution line, the transformer comprising: a transformer input port coupled to the power source input port, the transformer input port comprising a connector having a first half and a second half, the first half selectively removable from the second half, the first half containing a jumper; two input coils coupled to the second half of the connector of the transformer input port; at least one output coil coupled to the two input coils; and a transformer output port coupled to the at least one output coil; a rectifier coupled to the transformer output port; and a power factor correction (PFC) converter coupled to the rectifier, the PFC converter configured to be coupled to a power load.
2. The power distribution system of claim 1 , wherein the jumper couples the two input coils in series.
3. The power distribution system of claim 1 , further comprising a second jumper wherein the jumper and the second jumper couple the two input coils in parallel.
4. The power distribution system of claim 1 , wherein the first half of the connector comprises a first four electrical contacts and the second half of the connector comprises a second four electrical contacts configured to mate to the first four electrical contacts.
5. The power distribution system of claim 4 , wherein the jumper connects at least two of the first four electrical contacts.
6. The power distribution system of claim 1 , wherein the transformer is a parallel input transformer.
7. The power distribution system of claim 1 , wherein the transformer is a series input transformer.
8. A distributed communication system (DCS), comprising: a central unit configured to: distribute one or more downlink communication signals over one or more downlink communication links to a plurality of remote units; and distribute received one or more uplink communication signals from the plurality of remote units from one or more uplink communication links to one or more source communication outputs; the plurality of remote units, each remote unit among the plurality of remote units configured to: distribute at least one received downlink communication signal among the one or more downlink communication signals from the one or more downlink communication links to one or more client devices; and distribute the one or more uplink communication signals from the one or more client devices to the one or more uplink communication links; and a power distribution circuit, comprising: a power source input port configured to receive an alternating current (AC) power signal from an external power grid; a transformer for providing isolation between the external power grid and a power distribution line, the transformer comprising: a transformer input port coupled to the power source input port, the transformer input port comprising a connector having a first half and a second half, the first half selectively removable from the second half, the first half containing a jumper; two input coils coupled to the second half of the connector of the transformer input port; at least one output coil coupled to the two input coils; and a transformer output port coupled to the at least one output coil; a rectifier coupled to the transformer output port; and a power factor correction (PFC) converter coupled to the rectifier, the PFC converter configured to be coupled to a power load.
9. The DCS of claim 8 , wherein each remote unit among the plurality of remote units comprises: at least one optical-to-electrical (O-E) converter; and at least one electrical-to-optical (E-O) converter.
10. The DCS of claim 9 , wherein the central unit comprises: at least one E-O converter, wherein the one or more downlink communications links are optical downlink communications links; and at least one O-E converter, wherein the one or more uplink communications links are optical uplink communications links.
11. The DCS of claim 10 , further comprising a plurality of cables, wherein the plurality of cables optically couple the central unit to the plurality of remote units.
12. The DCS of claim 11 , wherein the plurality of remote units is distributed over multiple floors of an infrastructure, the DCS further comprising a plurality of interconnect units, each interconnect unit being connected to at least two of the plurality of remote units by at least one of the plurality of cables.
13. The DCS of claim 9 , wherein each remote unit among the plurality of remote units comprises at least one antenna.
14. The DCS of claim 8 , wherein the central unit comprises: at least one E-O converter, wherein the one or more downlink communications links are optical downlink communications links; and at least one O-E converter, wherein the one or more uplink communications links are optical uplink communications links.
15. The DCS of claim 14 , wherein each remote unit among the plurality of remote units comprises at least one antenna.
16. The DCS of claim 15 , further comprising a plurality of cables, wherein: the plurality of cables optically couple the central unit to the plurality of remote units; and the plurality of remote units is distributed over multiple floors of an infrastructure.
17. A method for conditioning power for provision to a distributed power network, the method comprising: receiving an alternating current (AC) power signal from a power grid at a transformer input port comprising a connector; passing current through a jumper in a first half of the connector to a second half of the connector; passing the current to two input coils in a transformer from the second half of the connector; isolating a power management circuit (PMC) from the power grid with the transformer; rectifying an output of the transformer to provide a rectified signal; performing a power factor correction (PFC) conversion on the rectified signal; and providing power.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
November 12, 2020
July 19, 2022
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